Academic Journal of Manufacturing Engineering最新文献

{"title":"Investigations On Mechanical Properties Of Micro Particulates (Al2O3/B4C) Reinforced In Aluminium 7075 Matrix Composite","authors":"Chandru J, Vishnu Sudarsan P","doi":"10.37255/jme.v18i3pp104-109","DOIUrl":"https://doi.org/10.37255/jme.v18i3pp104-109","url":null,"abstract":"Metal Matrix Micro Composites (MMMCs), with the addition of micro-particulate reinforcements, can be significant for automobile, aerospace and numerous applications due to their low density and good mechanical properties, better corrosion and wear resistance, and low coefficient of thermal expansion compared to conventional materials. Designing the metal matrix composite material aims to combine the desirable attributes of metals and ceramics. The present work is focused on studying the mechanical properties of Aluminium alloy (7075) with Al2O3 and B4C micro-composite produced by the Stir Casting method. Different % age of reinforcement is used. The Stir casting technique is used to achieve a uniform dispersion of micro-particulate Al2O3 and B4C in molten aluminium alloy. A tensile test, Hardness test, and Impact test were performed on the samples obtained by the fabrication processes. A microstructural study will be carried out through an optical Microscope to know the distribution of Al2O3 and B4C micro particulates in Al alloy.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135054438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling of Resistance Spot Welding Using FEM","authors":"Ziad Al Sarraf","doi":"10.37255/jme.v18i3pp086-090","DOIUrl":"https://doi.org/10.37255/jme.v18i3pp086-090","url":null,"abstract":"The resistance spot welding process is significant for joining materials in the automotive industry because it offers high speed and can be easily automated. Recently, there has been a demand in the automotive industry to reduce vehicle weight to improve fuel efficiency. Aluminium alloys are considered a viable alternative for auto-body materials to meet this requirement. It not only helps enhance fuel efficiency but also addresses the issue of vehicle corrosion. However, joining aluminium through resistance spot welding presents serious challenges compared to steel. One significant difficulty arises from the faster deterioration of electrodes. Aluminium alloys possess high electrical and thermal conductivity, significant shrinkage during solidification, and a natural oxide coating. These features make the spot welding process for aluminium alloys notably distinct. When exposed to high temperatures, aluminium undergoes a chemical reaction with the copper alloy found in the electrode material. This results in the unpredictable removal of material from the electrode surfaces, causing wear and significantly reducing the lifespan of the electrode during spot welding of aluminium alloys. This decrease in electrode tip longevity poses a significant drawback in weldability, as the durability of the electrode tip significantly affects its suitability for automotive applications. Due to the rapid nature of the process, obtaining crucial information, such as the transient distribution of current density and temperature through experimental methods, becomes challenging. Therefore, this study aims to develop an integrated computer simulation model using the finite element method to analyze the resistance spot welding process of aluminium alloys. Multiple calculations were performed considering different welding currents, weld times, electrode forces, and various surface conditions of the aluminium sheets. The simulation considers the nonlinear, temperature-dependent, thermo-physical properties of the materials. Interestingly, it was observed that in most cases, the nugget diameter is formed within a short time frame of 0.02 to 0.04 seconds, and further application of welding current primarily increases the heating of the electrode face. Moreover, the aluminium sheets’ initial surface condition significantly influences the nugget’s formation. Several other conclusions have been drawn as a result of this study.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135056023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficiency Enhancement of Heat Transfer Fluids by Using Carbon Dots Nanoparticles Derived From Aloe Vera","authors":"Joseph Arun Prasath VP, Chandrasekaran K, Madhan Muthu Ganesh K, RanjithKumar P, Ramanathan R","doi":"10.37255/jme.v18i3pp100-103","DOIUrl":"https://doi.org/10.37255/jme.v18i3pp100-103","url":null,"abstract":"Modern technological progress in transportation, medical, electronics and HVAC systems has resulted in an extreme need for a performance-enhanced heat transfer system. Heat transfer employing a flowing fluid is most used, and the thermal properties of liquids play a decisive role in heating and cooling applications in industrial processes. The thermal conductivity of a liquid is an important physical property that decides its heat transfer performance. Conventional heat transfer fluids have inherently poor thermal conductivity, making them inadequate for ultra-high heat transfer applications. Nanofluids are a new class of liquids whose properties are controllable by adding nanoparticles. A great deal of attention has been drawn to their enhanced heat transfer characteristics relative to that of pure fluid. This paper synthesizes three various Nano Fluids and experimentally compares their heat transfer capabilities using a shell and tube heat exchanger setup. An attempt is made to suggest applications for enhanced heat transfer. Al2O3 Nanofluid is compared with Nanofluid containing carbon dots derived from Aloe vera, and it has been found that carbon. Aloe vera yields more heat transfer","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135056289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Welding Windows for Aluminum-Magnesium and Titanium-Steel Explosive Cladding","authors":"None Saravanan","doi":"10.37255/jme.v18i3pp096-099","DOIUrl":"https://doi.org/10.37255/jme.v18i3pp096-099","url":null,"abstract":"This study analytically estimated the welding domain for explosive cladding of aluminium-magnesium and titanium-steel combinations. Welding window, an analytical estimation, can ascertain whether the interface is wave-like or straight. The welding window’s lower, upper, left, and right boundaries were constructed using empirical relations suggested by peer researchers. The soundness of the dissimilar clad is primarily positioned near the lower boundary of the welding window. The ideal process parametric condition for an undulating interface is also laid out.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135055800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tribological Performance Evaluation of TMPTO Based Nano-Lubricants","authors":"Bhanudas Bachchhav, Yash Anecha, Balraj Waghmare","doi":"10.37255/jme.v18i3pp091-095","DOIUrl":"https://doi.org/10.37255/jme.v18i3pp091-095","url":null,"abstract":"In recent years, nano lubricants have gained significant attention due to their potential to enhance lubricant efficacy and reduce friction and wear. This research work aims to investigate the effects of TiO2 nanoparticles into trimethylolpropane trioleate (TMPTO) based bio-lubricant on its friction and wear characteristics. The four-ball tester is employed to evaluate the lubricating performance of the TMPTO-TiO2 nano-lubricant at varying additive concentrations under controlled conditions of speed, load, and temperature. The parameters were ranked based on the results of the Taguchi experiments and their corresponding single-to-noise ratios. The combination of TMPTO base oil and TiO2 nano-lubricant exhibited a synergistic effect in diminishing friction and wear. This research aligns with the growing demand for environmentally friendly and efficient lubrication solutions in various metalworking industries. Further investigation of the wear mechanism under TMPTO oil-based nano lubricants and its applicability in high-speed metal cutting applications is suggested.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135055825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CHARACTERIZATION OF PRODUCED BIODEGRADABLE BRAKE-PAD FROM WASTE COCONUT FRUIT FIBER AND OYSTER SEA SHELLS AS REINFORCEMENT MATERIALS","authors":"Second Justice Eziwhuo, Ossia CV, Joseph T","doi":"10.37255/jme.v18i2pp043-057","DOIUrl":"https://doi.org/10.37255/jme.v18i2pp043-057","url":null,"abstract":"In the present research, organic materials (coconut fruit fibres CFF and oyster sea shells OSS) were used as a substitute for asbestos materials. The waste CFF and OSS were washed, crushed, grounded, and sieved to different sizes. The sieved CFF and OSS as reinforcement materials were prepared in three different levels, K1, K2, and K3, with addictive such as phenolic resin, graphite, copper, and hardener. Level K1 has 50% of OSS and 0% of CFF, K2 has 50% of CFF and 50% of OSS, while K3 has 50% of CFF and 0% of OSS. The prepared levels were moulded in clean metal moulding plates up to twenty-seven (27) runs using the Box Behnken Design technic of four factors and three levels. The 27 produced brake pads and commercial brake pad CBP were tested in a laboratory to determine their characterization, such as; thermal conductivity, thermos gravimetric analysis (TGA) and wear rate. The characterization of the produced brake pad has a related standard brake pad coefficient of friction of 0.3 – 0.45 while that of produced brake pad PBP has the lowest TGA of S3232 - 25.44% than CBP 41.90% and PBP of S3122 has the lowest wear rate of 3.17 than CBP 3.92g. From the evaluation, the PBP were superior and performed best in braking application.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135195432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RECENT PROGRESS AND EVOLUTION IN THE DEVELOPMENT OF NON-ASBESTOS BASED AUTOMOTIVE BRAKE PADS- A REVIEW","authors":"Emmanuel Ekpruke, Ossia CV, Big-Alabo A","doi":"10.37255/jme.v18i2pp058-070","DOIUrl":"https://doi.org/10.37255/jme.v18i2pp058-070","url":null,"abstract":"Asbestos has been a significant reinforcement material in producing automobile friction components due to its physical and mechanical properties. However, the replacement of asbestos and other toxic metals employed in producing conventional friction components has been called for due to health and environmental concerns. Research in this area has led to the development of more efficient non-asbestos-based organic friction materials for automobiles. In this study, recent progress in the manufacture of non-asbestos-based, eco-friendly automotive brake pads is reviewed. A thorough classification of conventional and non-conventional friction materials used in the development of brake pads is presented, and the production method and the roles of friction materials in the mechanical and tribological properties of the manufactured pads are discussed. The study shows that the performance of brake pads manufactured from plants, animals, or plants and animal materials (hybrid) varies depending on the physical, chemical and mechanical properties of the plants and animals.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135195764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SIMULATION OF METALLIC WIRE-ARC ADDITIVE MANUFACTURING (WAAM) PROCESS USING SIMUFACT WELDING SOFTWARE","authors":"Vishal Kumar, Ankit Singh, Harish Bishwakarma, Amitava Mandal","doi":"10.37255/jme.v18i2pp080-085","DOIUrl":"https://doi.org/10.37255/jme.v18i2pp080-085","url":null,"abstract":"Wire arc additive manufacturing (WAAM) is one of the emerging low-cost metal additive manufacturing techniques used to fabricate medium-large complex structures. The process provides design flexibility, supports green manufacturing, power efficiency, good structural integrity, high performance, and cost benefits, particularly for large-scale components. However, the heating and cooling cycle prevails during the deposition of material layer upon layer resulting in heat accumulation within the deposited layers. It causes geometric inaccuracy, surface roughness, high residual stresses, and mechanical anisotropy in the built structures. Therefore, SIMUFACT-Welding software has been used to model and simulate the WAAM process to fabricate a straight steel wall structure. The simulated results were able to visualize the existing thermal cycle during layer deposition and the effect of heat input on the fabricated wall structure and the substrate.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135195431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EFFECT OF TIG WELDING ON ALUMINIUM MATRIX COMPOSITE","authors":"Sakthi Vadivel K, Sivaraj C, Vigneshwaran K","doi":"10.37255/jme.v18i2pp071-079","DOIUrl":"https://doi.org/10.37255/jme.v18i2pp071-079","url":null,"abstract":"Metal Matrix Composite has evoked a keen interest in potential applications in aerospace and automotive industries, owing to their superior strength-to-weight ratio and temperature resistance. Nowadays, welding strength on composite materials is more essential. So, in this project, we consider the effect of TIG welding on aluminium matrix composite (Al & Sn). The TIG welding on aluminium alloys like (Al 6061& Al 6063) has lost its welding strength by around 30% in Al 6063 & 50% in Al 6061. To regain the welding strength, we need a heat treatment process like hardening and tempering, which is a more costly and time-consuming one. To eradicate this problem, we will mix the malleable Tin (Sn) in different ratios of 90:10 and 85:15 for the aluminium alloys (Al 6061 & Al 6063). Then analyzing the effect of TIG welding on the aluminium metal matrix, the welding strength of the aluminium metal matrix composite is increased by 5% compared to the previous material.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135195772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SUSTAINABLE DEVELOPMENT OF LIGHTWEIGHT RECYCLED ALUMINIUM COMPOSITES","authors":"Santhosh Aadhari, Venkatesh Kolusu, Shyam Kumar Sivakoti, Sathish Pendyala","doi":"10.37255/jme.v18i2pp037-042","DOIUrl":"https://doi.org/10.37255/jme.v18i2pp037-042","url":null,"abstract":"In the present work, three composites have been developed by reinforcing Mild Steel (MS) chips in the amounts of 1 wt. %, 2 wt. % 3 wt. % respectively to recycled Aluminium chips through a manual stir-casting process. The developed composites were hot rolled at 200 ℃ to 50% reduction to increase the strength further. The microstructure showed that adding MS chips leads to grain refinement in the matrix due to the promotion of instantaneous nucleation. Further, it was observed that the composite developed by reinforcing 2 wt. % MS chips exhibited better grain refinement and the smallest grain size among the others, which also exhibited the highest hardness and compression strength of 83 Hv and 563 MPa, respectively, which are 26% and 15.3%, respectively, compared to the unreinforced alloy. This improvement in the strength can be attributed to the improved grain refinement, uniform distribution of MS powder in the matrix, formation of secondary phase and dispersion strengthening. However, beyond 2 wt. % addition of MS chips, the grain size started to grow, leading to a decline in the hardness and compression strength. Further, all the hot-rolled samples exhibited better properties than their counterparts. However, the variation trend in properties after hot rolling remained the same as the composite with 2 wt% MS chips showing the highest hardness and compression strength of 106 Hv and 722 MPa, respectively.","PeriodicalId":38895,"journal":{"name":"Academic Journal of Manufacturing Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135195430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}